CN106287986A - A kind of air-conditioner and control method thereof - Google Patents
A kind of air-conditioner and control method thereof Download PDFInfo
- Publication number
- CN106287986A CN106287986A CN201610867411.XA CN201610867411A CN106287986A CN 106287986 A CN106287986 A CN 106287986A CN 201610867411 A CN201610867411 A CN 201610867411A CN 106287986 A CN106287986 A CN 106287986A
- Authority
- CN
- China
- Prior art keywords
- indoor set
- electromagnetic valve
- electric expansion
- branch line
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/26—Refrigerant piping
- F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to air-conditioning technical field, particularly relate to a kind of air-conditioner and control method thereof.Air-conditioner includes off-premises station and several indoor sets, described off-premises station connects cold medium main pipe road, each described indoor set is all connected with described cold medium main pipe road by a coolant branch line, being provided with electric expansion valve on every described coolant branch line, coolant branch line described at least one is provided with the electromagnetic valve in parallel with the electric expansion valve arranged on it.The air-conditioner that the present invention provides is provided with the electromagnetic valve in parallel with the electric expansion valve on coolant branch line at the coolant branch line being connected with indoor set, electric expansion valve and electromagnetic valve can distinguish the indoor set of corresponding different refrigerating capacity scope, improve and be parallel with the refrigerating capacity scope of the attachable indoor set of coolant branch line of electromagnetic valve, this air-conditioner i.e. can be arranged in pairs or groups the indoor set of different refrigerating capacity scope, strengthens its versatility.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly relate to a kind of air-conditioner and control method thereof.
Background technology
Multi-split air conditioner is exactly the indoor set using the multiple different ability sections of off-premises station collocation, meets not chummery
Heat or refrigeration demand.Outdoor machine system correspond to be respectively provided with electric expansion valve on the pressure duct of each interior machine and regulates
The refrigerant flow of different indoor sets, but refrigerant flow requirements is differed greatly by the indoor set of different refrigeration or heating capacity,
The electric expansion valve depending merely on a specification is difficult to meet respective traffic demand, thus in the room that collocation is freezed or heating capacity is bigger
Can limit the when of interior machine.
Air-conditioning producer multi-split air conditioner can be arranged in pairs or groups the most in the world maximum refrigeration or the indoor of heating capacity are machine-processed
Cold energy power can only achieve 36000Btu/h, it is impossible to the indoor set of bigger refrigerating capacity of arranging in pairs or groups, and have impact on multi-split air conditioner outdoor
The versatility of machine.
Summary of the invention
(1) to solve the technical problem that
The technical problem to be solved in the present invention is to solve the refrigerating capacity of the indoor set that air-conditioner can be arranged in pairs or groups in prior art
The problem that scope is less.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of air-conditioner, including off-premises station and several indoor
Machine, described off-premises station connects cold medium main pipe road, and each described indoor set is all by a coolant branch line and described coolant
Main line connects, and every described coolant branch line is provided with electric expansion valve, coolant branch line described at least one
The electric expansion valve electromagnetic valve in parallel being provided with and arrange on it.
Further, the bore of described electromagnetic valve is more than the bore of the described electric expansion valve being in parallel with it.
Further, the refrigeration energy of the described indoor set being connected with the described coolant branch line being parallel with described electromagnetic valve
Power scope is 24000～60000Btu/h.
Further, the bore of described electric expansion valve is 1/3～2/3 times of described electromagnetic valve bore.
Further, also including controller, described controller is for the refrigeration capacity requirement control according to each described indoor set
Make described electromagnetic valve corresponding thereto and the switch of described electric expansion valve；When dividing with the coolant being parallel with described electromagnetic valve
The refrigerating capacity of the indoor set that bye-pass connects more than opening the electromagnetic valve corresponding with indoor set this described during preset value, close and
The electric expansion valve that this described indoor set is corresponding；When the indoor set being connected with the coolant branch line being parallel with described electromagnetic valve
Refrigerating capacity open the electric expansion valve corresponding with indoor set this described when being not more than preset value, close and this described indoor set
Corresponding electromagnetic valve.
Further, described indoor set is provided with multiple, and described electromagnetic valve is arranged on bypass line, described bypass line
One end is connected with described cold medium main pipe road, and the other end is connected to the coolant branch line between described electric expansion valve and indoor set
On.
Present invention also offers the control method of a kind of above-mentioned air-conditioner, comprise the following steps:
Refrigeration capacity requirement according to each described indoor set controls described electromagnetic valve corresponding thereto and described electronics
The switch of expansion valve；When the refrigerating capacity of the indoor set being connected with the coolant branch line being parallel with described electromagnetic valve is more than preset value
The electromagnetic valve that Shi Kaiqi is corresponding with indoor set this described, cuts out the electric expansion valve corresponding with indoor set this described, when with
Be parallel with when the refrigerating capacity of indoor set that the coolant branch line of described electromagnetic valve connects is not more than preset value open with this described
The electric expansion valve that indoor set is corresponding, closes the electromagnetic valve corresponding with indoor set this described.
Further, described preset value is 36000Btu/h.
(3) beneficial effect
The technique scheme of the present invention compared with prior art has the advantage that the air-conditioning that the embodiment of the present invention provides
Device is provided with the electromagnetic valve in parallel with the electric expansion valve on coolant branch line at the coolant branch line being connected with indoor set, electricity
Sub-expansion valve and electromagnetic valve can distinguish the indoor set of corresponding different refrigerating capacity scope, improve and are parallel with electromagnetic valve
The refrigerating capacity scope of the attachable indoor set of coolant branch line, i.e. this air-conditioner can be arranged in pairs or groups different refrigerating capacity scope
Indoor set, strengthens its versatility.
Accompanying drawing explanation
Fig. 1 is the structural representation of the air-conditioner that the embodiment of the present invention provides.
In figure: 1: off-premises station；2: indoor set；3: cold medium main pipe road；4: coolant branch line；5: electric expansion valve；6: electricity
Magnet valve；7: bypass line.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of not making creative work, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, a kind of air-conditioner that the embodiment of the present invention provides, including off-premises station 1 and several indoor sets 2,
Off-premises station 1 connects has cold medium main pipe road 3, each indoor set 2 to be all connected with cold medium main pipe road 3 by a coolant branch line 4,
Be provided with electric expansion valve 5 on every coolant branch line 4, at least one coolant branch line 4 be provided with its on arrange
The electromagnetic valve 6 of electric expansion valve 5 parallel connection.Specifically, in the present embodiment, indoor set 2 can be one or more, when indoor set 2 is
When one, cold medium main pipe road 3 and coolant branch line 4 are same pipeline, and electric expansion valve 5 is arranged on coolant branch line 4
On, coolant branch line 4 is provided with the electromagnetic valve 6 in parallel with electric expansion valve 5.When indoor set 2 is provided with multiple, it is provided with many
Bar coolant branch line 4 is connected with each indoor set 2 respectively, at least the electric expansion valve 5 on a coolant branch line 4
Have electromagnetic valve 6 connected in parallel, naturally it is also possible to every coolant branch line 4 be provided with its on the electric expansion valve that arranges
The electromagnetic valve 6 of 5 parallel connections.
The air-conditioner that the embodiment of the present invention provides is provided with and coolant branch at the coolant branch line 4 being connected with indoor set 2
The electromagnetic valve 6 of electric expansion valve 5 parallel connection on pipeline 4, electric expansion valve 5 and electromagnetic valve 6 can distinguish corresponding different refrigeration
The indoor set 2 of limit of power, improves and is parallel with the refrigeration energy of the attachable indoor set of coolant branch line 42 of electromagnetic valve 6
Power scope, i.e. this air-conditioner can be arranged in pairs or groups the indoor set 2 of different refrigerating capacity scope, strengthen its versatility.
Further, the bore of the electromagnetic valve 6 in this enforcement is more than the bore of the electric expansion valve 5 being in parallel with it.Real
During the use of border, the bore of electric expansion valve 5 is typically small, the indoor set 2 that the most existing electric expansion valve 5 can be arranged in pairs or groups
Refrigerating capacity less, and electromagnetic valve 6 is different from the structure of electric expansion valve 5, and electromagnetic valve 6 can be accomplished accurately to adjust under heavy caliber
Joint, namely electromagnetic valve 6 can arrange in pairs or groups the indoor set 2 of bigger refrigerating capacity, increases the system of the indoor set 2 that air-conditioner can be arranged in pairs or groups
Cold limit of power, the indoor set 2 of higher refrigerating capacity of especially can arranging in pairs or groups.
Further, the refrigeration of the indoor set 2 being connected with the coolant branch line 4 being parallel with electromagnetic valve 6 in the present embodiment
Limit of power is 24000～60000Btu/h.The interior machine maximum refrigerating capacity one of collocation in multi-split air conditioner in prior art
As less than 36000Btu/h, the application increases flow adjustment range by arranging electromagnetic valve 6, higher refrigeration energy of can arranging in pairs or groups
The indoor set 2 of power.Specifically, the bore of the electric expansion valve 5 in the present embodiment is 1/3～2/3 times of electromagnetic valve 6 bore.Make
Accurately can must be regulated by electric expansion valve 5 indoor set 2 refrigeration capacity requirement is less when, at indoor set 2 refrigeration capacity requirement
Accurately can be regulated by electromagnetic valve 6 time bigger.
Further, the air-conditioner in the present embodiment also includes controller, and controller is for the system according to each indoor set 2
Refrigeration requirement controls electromagnetic valve 6 corresponding thereto and the switch of electric expansion valve 5；When with the coolant being parallel with electromagnetic valve 6
The refrigerating capacity of the indoor set 2 that branch line 4 connects, more than opening the electromagnetic valve 6 corresponding with this indoor set 2 during preset value, is closed
The electric expansion valve 5 corresponding with this indoor set 2；When the indoor set 2 being connected with the coolant branch line 4 being parallel with electromagnetic valve 6
Refrigerating capacity open the electric expansion valve 5 corresponding with this indoor set 2 when being not more than preset value, close relative with this indoor set 2
The electromagnetic valve 6 answered.Refrigeration capacity requirement according to indoor set 2 controls electric expansion valve 5 and the switch of electromagnetic valve 6, it is simple to collocation
The accurate control of the air-conditioner of big refrigerating capacity scope indoor set 2.
Further, in the present embodiment, indoor set 2 is provided with multiple, and electromagnetic valve 6 is arranged on bypass line 7, bypass line 7
One end be connected with cold medium main pipe road 3, the other end is connected to the coolant branch line 4 between electric expansion valve 5 and indoor set 2
On.Bypass line 7 is directly connected with cold medium main pipe road 3, is conducive to the circulation of coolant when big flow.
The embodiment of the present invention additionally provides the control method of a kind of above-mentioned air-conditioner, comprises the following steps:
Refrigeration capacity requirement according to each indoor set 2 controls opening of electromagnetic valve 6 corresponding thereto and electric expansion valve 5
Close；Open when the refrigerating capacity of the indoor set 2 being connected with the coolant branch line 4 being parallel with electromagnetic valve 6 is more than preset value and be somebody's turn to do
The electromagnetic valve 6 that indoor set 2 is corresponding, cuts out the electric expansion valve 5 corresponding with this indoor set 2, when be parallel with electromagnetic valve 6
It is swollen that the refrigerating capacity of the indoor set 2 that coolant branch line 4 connects opens the electronics corresponding with this indoor set 2 when being not more than preset value
Swollen valve 5, cuts out the electromagnetic valve 6 corresponding with this indoor set 2.Preferably, the preset value in the present embodiment is 36000Btu/h.Face
Boundary's point is set to 36000Btu/h, is conducive to playing the maximum effect of electric expansion valve 5, improves the system of the indoor set 2 that can arrange in pairs or groups
The maximum of cold energy power.Advantage and the beneficial effect of this control method are identical with the beneficial effect of above-mentioned air-conditioner, the most not
Repeat again.
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；Although
With reference to previous embodiment, the present invention is described in detail, it will be understood by those within the art that: it still may be used
So that the technical scheme described in foregoing embodiments to be modified, or wherein portion of techniques feature is carried out equivalent；
And these amendment or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (8)
1. an air-conditioner, including off-premises station and several indoor sets, described off-premises station connects cold medium main pipe road, Mei Gesuo
State indoor set to be all connected with described cold medium main pipe road by a coolant branch line, every described coolant branch line is all provided with
Be equipped with electric expansion valve, it is characterised in that: coolant branch line described at least one be provided with its on arrange electric expansion valve
Electromagnetic valve in parallel.
Air-conditioner the most according to claim 1, it is characterised in that: the bore of described electromagnetic valve is more than the institute being in parallel with it
State the bore of electric expansion valve.
Air-conditioner the most according to claim 2, it is characterised in that: with the described coolant branched pipe being parallel with described electromagnetic valve
The refrigerating capacity scope of the described indoor set that road connects is 24000～60000Btu/h.
Air-conditioner the most according to claim 3, it is characterised in that: the bore of described electric expansion valve is described electromagnetism valve port
1/3～2/3 times of footpath.
Air-conditioner the most according to claim 2, it is characterised in that: also including controller, described controller is for according to every
The refrigeration capacity requirement of individual described indoor set controls described electromagnetic valve corresponding thereto and the switch of described electric expansion valve；When
The refrigerating capacity of the indoor set being connected with the coolant branch line being parallel with described electromagnetic valve more than preset value time open with this described
The electromagnetic valve that indoor set is corresponding, cuts out the electric expansion valve corresponding with indoor set this described；When be parallel with described electromagnetism
The refrigerating capacity of the indoor set that the coolant branch line of valve connects is opened corresponding with indoor set this described when being not more than preset value
Electric expansion valve, closes the electromagnetic valve corresponding with indoor set this described.
Air-conditioner the most according to claim 2, it is characterised in that: described indoor set is provided with multiple, and described electromagnetic valve is arranged
On bypass line, one end of described bypass line is connected with described cold medium main pipe road, and the other end is connected to described electronic expansion
On coolant branch line between valve and indoor set.
7. the control method of the air-conditioner as described in any one of claim 5, it is characterised in that comprise the following steps:
Refrigeration capacity requirement according to each described indoor set controls described electromagnetic valve corresponding thereto and described electronic expansion
The switch of valve；Open when the refrigerating capacity of the indoor set being connected with the coolant branch line being parallel with described electromagnetic valve is more than preset value
Open the electromagnetic valve corresponding with indoor set this described, close the electric expansion valve corresponding with indoor set this described, when with in parallel
The refrigerating capacity having the indoor set that the coolant branch line of described electromagnetic valve connects is opened and these described indoor when being not more than preset value
The electric expansion valve that machine is corresponding, closes the electromagnetic valve corresponding with indoor set this described.
The control method of air-conditioner the most according to claim 7, it is characterised in that described preset value is 36000Btu/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610867411.XA CN106287986A (en) | 2016-09-29 | 2016-09-29 | A kind of air-conditioner and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610867411.XA CN106287986A (en) | 2016-09-29 | 2016-09-29 | A kind of air-conditioner and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106287986A true CN106287986A (en) | 2017-01-04 |
Family
ID=57716048
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610867411.XA Pending CN106287986A (en) | 2016-09-29 | 2016-09-29 | A kind of air-conditioner and control method thereof |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021223778A1 (en) * | 2020-06-15 | 2021-11-11 | 青岛海尔空调器有限总公司 | Electronic expansion valve failure detection method and device for multi-split air conditioner, and air conditioner |
Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0510618A (en) * | 1991-07-03 | 1993-01-19 | Aisin Seiki Co Ltd | Multi-chamber air conditioner |
| JPH07324842A (en) * | 1994-06-01 | 1995-12-12 | Matsushita Seiko Co Ltd | Multi-room air conditioner |
| JPH10185342A (en) * | 1996-12-19 | 1998-07-14 | Matsushita Refrig Co Ltd | Heat pump type air conditioner |
| JPH1151516A (en) * | 1997-08-05 | 1999-02-26 | Mitsubishi Heavy Ind Ltd | Protecting device of compressor in air conditioner |
| JP2002098286A (en) * | 2000-09-21 | 2002-04-05 | Kakinuma Kinzoku Seiki Kk | Branch joint and pipe connecting method using the same |
| CN2503393Y (en) * | 2001-10-31 | 2002-07-31 | 上海日立电器有限公司 | Intelligent distributor for refrigerant flow |
| JP2007032921A (en) * | 2005-07-26 | 2007-02-08 | Kakinuma Kinzoku Seiki Kk | Flow divider and its manufacturing method |
| CN2901189Y (en) * | 2006-04-18 | 2007-05-16 | 广东美的电器股份有限公司 | Cold medium regulator for air conditioner |
| JP2010236831A (en) * | 2009-03-31 | 2010-10-21 | Mitsubishi Heavy Ind Ltd | Refrigerating device for land transportation |
| CN102003773A (en) * | 2010-11-25 | 2011-04-06 | 佛山市中格威电子有限公司 | Shunt compensation control system of inverter-driven multi-split air conditioner |
| CN201964699U (en) * | 2011-02-23 | 2011-09-07 | 宁波奥克斯电气有限公司 | Combined throttle device of electronic expansion valve |
| CN102297494A (en) * | 2011-08-02 | 2011-12-28 | 南京天加空调设备有限公司 | Method for refrigeration and stably operation at low load of vacuum reducer valve and system thereof |
| CN102654303A (en) * | 2012-05-09 | 2012-09-05 | 青岛海尔空调电子有限公司 | Air conditioning system and pressure adjusting method and device for same |
| CN102878643A (en) * | 2011-07-12 | 2013-01-16 | 季德贵 | Method for protecting multi-split air conditioner |
| CN202734368U (en) * | 2012-06-26 | 2013-02-13 | 广东美的暖通设备有限公司 | Throttling system and air conditioner using same |
| CN204115161U (en) * | 2014-09-30 | 2015-01-21 | 广东志高暖通设备股份有限公司 | A kind of interior machine controller of multiple on-line system |
| CN204115163U (en) * | 2014-09-30 | 2015-01-21 | 广东志高暖通设备股份有限公司 | A kind of interior machine controller of multiple on-line system |
| CN104501303A (en) * | 2014-11-24 | 2015-04-08 | 广东美的制冷设备有限公司 | Multi-split air conditioner and refrigerant circulation control method |
| EP2891849A1 (en) * | 2013-08-02 | 2015-07-08 | O.Y.L. Research & Development Centre Sdn Bhd | Heat reclaim for a multifunction heat pump and a multifunction air conditioner |
| CN206234914U (en) * | 2016-09-29 | 2017-06-09 | 广东美的制冷设备有限公司 | A kind of air-conditioner |
-
2016
- 2016-09-29 CN CN201610867411.XA patent/CN106287986A/en active Pending
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0510618A (en) * | 1991-07-03 | 1993-01-19 | Aisin Seiki Co Ltd | Multi-chamber air conditioner |
| JPH07324842A (en) * | 1994-06-01 | 1995-12-12 | Matsushita Seiko Co Ltd | Multi-room air conditioner |
| JPH10185342A (en) * | 1996-12-19 | 1998-07-14 | Matsushita Refrig Co Ltd | Heat pump type air conditioner |
| JPH1151516A (en) * | 1997-08-05 | 1999-02-26 | Mitsubishi Heavy Ind Ltd | Protecting device of compressor in air conditioner |
| JP2002098286A (en) * | 2000-09-21 | 2002-04-05 | Kakinuma Kinzoku Seiki Kk | Branch joint and pipe connecting method using the same |
| CN2503393Y (en) * | 2001-10-31 | 2002-07-31 | 上海日立电器有限公司 | Intelligent distributor for refrigerant flow |
| JP2007032921A (en) * | 2005-07-26 | 2007-02-08 | Kakinuma Kinzoku Seiki Kk | Flow divider and its manufacturing method |
| CN2901189Y (en) * | 2006-04-18 | 2007-05-16 | 广东美的电器股份有限公司 | Cold medium regulator for air conditioner |
| JP2010236831A (en) * | 2009-03-31 | 2010-10-21 | Mitsubishi Heavy Ind Ltd | Refrigerating device for land transportation |
| CN102003773A (en) * | 2010-11-25 | 2011-04-06 | 佛山市中格威电子有限公司 | Shunt compensation control system of inverter-driven multi-split air conditioner |
| CN201964699U (en) * | 2011-02-23 | 2011-09-07 | 宁波奥克斯电气有限公司 | Combined throttle device of electronic expansion valve |
| CN102878643A (en) * | 2011-07-12 | 2013-01-16 | 季德贵 | Method for protecting multi-split air conditioner |
| CN102297494A (en) * | 2011-08-02 | 2011-12-28 | 南京天加空调设备有限公司 | Method for refrigeration and stably operation at low load of vacuum reducer valve and system thereof |
| CN102654303A (en) * | 2012-05-09 | 2012-09-05 | 青岛海尔空调电子有限公司 | Air conditioning system and pressure adjusting method and device for same |
| CN202734368U (en) * | 2012-06-26 | 2013-02-13 | 广东美的暖通设备有限公司 | Throttling system and air conditioner using same |
| EP2891849A1 (en) * | 2013-08-02 | 2015-07-08 | O.Y.L. Research & Development Centre Sdn Bhd | Heat reclaim for a multifunction heat pump and a multifunction air conditioner |
| CN204115161U (en) * | 2014-09-30 | 2015-01-21 | 广东志高暖通设备股份有限公司 | A kind of interior machine controller of multiple on-line system |
| CN204115163U (en) * | 2014-09-30 | 2015-01-21 | 广东志高暖通设备股份有限公司 | A kind of interior machine controller of multiple on-line system |
| CN104501303A (en) * | 2014-11-24 | 2015-04-08 | 广东美的制冷设备有限公司 | Multi-split air conditioner and refrigerant circulation control method |
| CN206234914U (en) * | 2016-09-29 | 2017-06-09 | 广东美的制冷设备有限公司 | A kind of air-conditioner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021223778A1 (en) * | 2020-06-15 | 2021-11-11 | 青岛海尔空调器有限总公司 | Electronic expansion valve failure detection method and device for multi-split air conditioner, and air conditioner |
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